A Ditto machine employed a printing method in which a sheet of paper coated with colored wax was pressed into another sheet of paper. They were invented in 1923 and used until the 1970s.

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Telegraph receiver

Transparency projector

Ditto machine

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beckysbarn.com

beckysbarn.com

x

beckysbarn.com

Iceboxes were cabinets for storing food and were usually made of wood, lined with tin or zinc, and included a compartment for a large block of ice.

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Refrigerator

Air conditioner

Icebox

3

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instructables.com

instructables.com

x

instructables.com

A floppy disk is a thin, flexible, magnetic donut-shaped tape that was sealed in a rectangular plastic envelope and used for storing computer data. They were popular between the 1980s and early 2000s.

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Compact disc

Jump diskette

Floppy disk

4

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upload.wikimedia.org

upload.wikimedia.org

x

upload.wikimedia.org

Electric wringer/mangle washing machines had a sealed container with paddles to automatically agitate the clothing and two rollers to squeeze the water out. They were used in the 1930s.

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Washing machine

Pressure cooker

Hot water heater

5

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throwbackreviews.com

throwbackreviews.com

x

throwbackreviews.com

The Atari 2600 was a video game console with interchangeable game cartridges and a joystick. It was popular in the late 1970s and 1980s.

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Nintendo

Commodore 64

Atari

6

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acmebrooklyn.com

acmebrooklyn.com

x

acmebrooklyn.com

A boombox was a portable cassette or CD player with two or more loudspeakers and a handle. They were popular from the late 1970s to the 1990s.

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Boombox

Portable CB radio

VCR

7

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smecc.org

smecc.org

x

smecc.org

Teletypes were keyboard-operated machines that could send and receive messages by wire. They were used from the 1940s to the 1970s.

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Teletype

Mimeograph

Telecaster

8

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thewildwebster.wordpress.com

thewildwebster.wordpress.com

x

thewildwebster.wordpress.com

A walkie-talkie is a hand-held, portable, two-way radio that can receiver and transmit. They were first developed during World War II.

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Remote controls

Beepers

Walkie-talkies

9

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auctiva.com

auctiva.com

x

auctiva.com

A radio receiver converts radio waves into sounds through a loudspeaker. They were the most popular from the 1930s to the 1950s.

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Mantle clock

Radar detector

Radio

10

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blogspot.com

blogspot.com

x

blogspot.com

An electric typewriter had metal letters which would strike a ribbon to transfer ink or carbon impressions onto paper. They were used from the 1930s to the 1980s.

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Carbon copier

Electric typewriter

Fax machine

11

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ebay.com

ebay.com

x

ebay.com

Slide projectors contained a light bulb from which light would shine through transparent photographs (slides) so that enlarged images would appear on a projection screen. They were popular from the 1950s to the 1980s.

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Punch card sorter

Slide projector

Portable music player

12

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imgur.com

imgur.com

x

imgur.com

A pager is a wireless device that receives and displays numeric or text messages. They were popular in the late 1980s and early 1990s.

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Answering machine

Cassette recorder

Pager

13

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servimg.com

servimg.com

x

servimg.com

An 8-track was a reel of magnetic tape in a plastic cartridge. They were popular from the mid-1960s to the late-1970s.

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8-track

Cassette

Betamax

14

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daily-beat.com

daily-beat.com

x

daily-beat.com

Polaroid OneStep cameras were a type of camera that instantly generated a developed photograph. They were popular in the 1970s and 1980s.

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Camcorder

Polaroid camera

8 millimeter camera

15

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thelittleredhen.typepad.com

thelittleredhen.typepad.com

x

thelittleredhen.typepad.com

Rotary telephones had their numbers arranged in a circle so that a wheel could be rotated with one finger. They were popular until the early 1970s.